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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-16 01:04:08 +08:00
linux-next/tools/perf/tests
Song Liu d56354dc49 perf tools: Save bpf_prog_info and BTF of new BPF programs
To fully annotate BPF programs with source code mapping, 4 different
information are needed:

    1) PERF_RECORD_KSYMBOL
    2) PERF_RECORD_BPF_EVENT
    3) bpf_prog_info
    4) btf

This patch handles 3) and 4) for BPF programs loaded after 'perf
record|top'.

For timely process of these information, a dedicated event is added to
the side band evlist.

When PERF_RECORD_BPF_EVENT is received via the side band event, the
polling thread gathers 3) and 4) vis sys_bpf and store them in perf_env.

This information is saved to perf.data at the end of 'perf record'.

Committer testing:

The 'wakeup_watermark' member in 'struct perf_event_attr' is inside a
unnamed union, so can't be used in a struct designated initialization
with older gccs, get it out of that, isolating as 'attr.wakeup_watermark
= 1;' to work with all gcc versions.

We also need to add '--no-bpf-event' to the 'perf record'
perf_event_attr tests in 'perf test', as the way that that test goes is
to intercept the events being setup and looking if they match the fields
described in the control files, since now it finds first the side band
event used to catch the PERF_RECORD_BPF_EVENT, they all fail.

With these issues fixed:

Same scenario as for testing BPF programs loaded before 'perf record' or
'perf top' starts, only start the BPF programs after 'perf record|top',
so that its information get collected by the sideband threads, the rest
works as for the programs loaded before start monitoring.

Add missing 'inline' to the bpf_event__add_sb_event() when
HAVE_LIBBPF_SUPPORT is not defined, fixing the build in systems without
binutils devel files installed.

Signed-off-by: Song Liu <songliubraving@fb.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stanislav Fomichev <sdf@google.com>
Link: http://lkml.kernel.org/r/20190312053051.2690567-16-songliubraving@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-03-21 11:27:04 -03:00
..
attr perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
shell perf tests shell: Skip trace+probe_vfs_getname.sh if built without trace support 2019-02-15 13:42:26 -03:00
.gitignore perf test: Add libbpf relocation checker 2016-01-26 12:10:55 -03:00
attr.c perf tools: Fix diverse comment typos 2018-12-17 14:56:47 -03:00
attr.py perf script python: Add Python3 support to tests/attr.py 2019-02-05 10:31:08 -03:00
backward-ring-buffer.c perf tools: Fix errors under optimization level '-Og' 2019-03-19 16:52:04 -03:00
bitmap.c perf tools: Drop unneeded bitmap_zero() calls 2018-08-08 15:55:44 -03:00
bp_account.c perf tools: Remove duplicate headers 2019-01-21 15:15:57 -03:00
bp_signal_overflow.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bp_signal.c perf tests ARM: Disable breakpoint tests 32-bit 2018-12-17 14:56:27 -03:00
bpf-script-example.c perf test BPF: Fixup BPF test using epoll_pwait syscall function probe 2018-04-18 15:35:53 -03:00
bpf-script-test-kbuild.c perf tests bpf: Remove unused ptrace.h include from LLVM test 2018-04-12 10:33:24 -03:00
bpf-script-test-prologue.c perf bpf: Fix endianness problem when loading parameters in prologue 2017-08-16 10:31:11 -03:00
bpf-script-test-relocation.c perf test: Add libbpf relocation checker 2016-01-26 12:10:55 -03:00
bpf.c perf mmap: Simplify perf_mmap__read_init() 2018-03-08 10:05:53 -03:00
Build perf test: Add watchpoint test 2018-09-18 17:21:13 -03:00
builtin-test.c perf tests: Use shebangs in the shell scripts 2018-12-18 12:21:44 -03:00
clang.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
code-reading.c perf tools: Add missing include for symbols.h 2019-02-06 10:00:38 -03:00
cpumap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dso-data.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dwarf-unwind.c perf tools: Add missing include for symbols.h 2019-02-06 10:00:38 -03:00
event_update.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
event-times.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
evsel-roundtrip-name.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
evsel-tp-sched.c perf tests: Fix a memory leak in test__perf_evsel__tp_sched_test() 2019-03-19 16:52:06 -03:00
expr.c perf tests: Fix memory leak by expr__find_other() in test__expr() 2019-03-19 16:52:05 -03:00
fdarray.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hists_common.c pref tools: Add missing map.h includes 2019-02-06 10:00:38 -03:00
hists_common.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hists_cumulate.c pref tools: Add missing map.h includes 2019-02-06 10:00:38 -03:00
hists_filter.c pref tools: Add missing map.h includes 2019-02-06 10:00:38 -03:00
hists_link.c perf hist: Use cached rbtrees 2019-01-25 15:12:10 +01:00
hists_output.c pref tools: Add missing map.h includes 2019-02-06 10:00:38 -03:00
is_printable_array.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
keep-tracking.c perf mmap: Simplify perf_mmap__read_init() 2018-03-08 10:05:53 -03:00
kmod-path.c perf tools: Remove ext from struct kmod_path 2018-08-20 08:54:59 -03:00
llvm.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
llvm.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
make Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2016-12-17 16:24:13 -08:00
mem2node.c perf tools: Drop unneeded bitmap_zero() calls 2018-08-08 15:55:44 -03:00
mem.c perf tools: Fix snprint warnings for gcc 8 2018-03-19 10:00:43 -03:00
mmap-basic.c perf tests mmap: Show which tracepoint is failing 2018-04-18 15:35:52 -03:00
mmap-thread-lookup.c pref tools: Add missing map.h includes 2019-02-06 10:00:38 -03:00
openat-syscall-all-cpus.c perf tests: Fix a memory leak of cpu_map object in the openat_syscall_event_on_all_cpus test 2019-03-19 16:52:05 -03:00
openat-syscall-tp-fields.c perf mmap: Simplify perf_mmap__read_init() 2018-03-08 10:05:53 -03:00
openat-syscall.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
parse-events.c perf tools: Fix legacy events symbol separator parsing 2019-02-14 15:18:08 -03:00
parse-no-sample-id-all.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf-hooks.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf-record.c perf tests record: Allow for 'sleep' being 'coreutils' 2018-12-17 14:54:26 -03:00
perf-targz-src-pkg License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pmu.c perf tests pmu: Add missing headers 2019-02-06 10:00:38 -03:00
python-use.c perf test: Use header file util/debug.h 2018-06-04 10:28:53 -03:00
sample-parsing.c perf tests: Add missing headers so far obtained indirectly 2019-02-06 10:00:38 -03:00
sdt.c perf tests: Add missing headers so far obtained indirectly 2019-02-06 10:00:38 -03:00
stat.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sw-clock.c perf mmap: Simplify perf_mmap__read_init() 2018-03-08 10:05:53 -03:00
switch-tracking.c perf mmap: Simplify perf_mmap__read_init() 2018-03-08 10:05:53 -03:00
task-exit.c perf mmap: Simplify perf_mmap__read_init() 2018-03-08 10:05:53 -03:00
tests.h perf tests: Add a test for the ARM 32-bit [vectors] page 2019-01-08 13:28:13 -03:00
thread-map.c perf thread_map: Enumerate all threads from /proc 2017-12-27 12:15:46 -03:00
thread-mg-share.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
topology.c perf test session topology: Fix test on s390 2018-06-25 11:59:35 -03:00
unit_number__scnprintf.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vmlinux-kallsyms.c perf machine: Ditch find_kernel_function variants 2018-04-30 12:20:54 -03:00
wp.c perf test: S390 does not support watchpoints in test 22 2018-10-08 14:23:44 -03:00